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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC vs.
Revision 1.480 by root, Thu Oct 8 05:09:43 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	93	our @REFLECT; # set by XS
		94	our %REFLECT; # set by us
		95
		96	our $CONFDIR = confdir;
		97	our $DATADIR = datadir;
		98	our $LIBDIR = "$DATADIR/ext";
		99	our $PODDIR = "$DATADIR/pod";
		100	our $MAPDIR = "$DATADIR/" . mapdir;
		101	our $LOCALDIR = localdir;
		102	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		103	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		104	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		105	our $RANDOMDIR = "$LOCALDIR/random";
		106	our $BDBDIR = "$LOCALDIR/db";
		107	our $PIDFILE = "$LOCALDIR/pid";
		108	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		109
		110	our %RESOURCE;
60		111
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	112	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	113	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	114	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	115	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		116
		117	our $BDB_DEADLOCK_WATCHER;
		118	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	119	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	120	our $DB_ENV;
		121
		122	our @EXTRA_MODULES = qw(pod mapscript);
71		123
72	our %CFG;	124	our %CFG;
73		125
74	our $UPTIME; $UPTIME ||= time;	126	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	127	our $RUNTIME;
		128	our $NOW;
76		129
77	our %PLAYER; # all users	130	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	131	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	132	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		133
83	# used to convert map paths into valid unix filenames by replacing / by ∕	134	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	135	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		136
		137	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		138	our $LOADAVG; # same thing, but with alpha-smoothing
		139	our $JITTER; # average jitter
		140	our $TICK_START; # for load detecting purposes
		141
		142	our @POST_INIT;
		143
		144	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		145	our $REALLY_UNLOOP; # never set to true, please :)
		146
86	binmode STDOUT;	147	binmode STDOUT;
87	binmode STDERR;	148	binmode STDERR;
88		149
89	# read virtual server time, if available	150	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	151	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	152	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	153	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	154	$RUNTIME = <$fh> + 0.;
94	}	155	}
95		156
96	mkdir cf::localdir;	157	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	158
98	mkdir cf::localdir . "/" . cf::tmpdir;	159	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	160	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		161
103	our $EMERGENCY_POSITION;	162	our $EMERGENCY_POSITION;
104		163
105	sub cf::map::normalise;	164	sub cf::map::normalise;
		165
		166	#############################################################################
		167
		168	%REFLECT = ();
		169	for (@REFLECT) {
		170	my $reflect = JSON::XS::decode_json $_;
		171	$REFLECT{$reflect->{class}} = $reflect;
		172	}
		173
		174	# this is decidedly evil
		175	$REFLECT{object}{flags} = [grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"}];
106		176
107	#############################################################################	177	#############################################################################
108		178
109	=head2 GLOBAL VARIABLES	179	=head2 GLOBAL VARIABLES
110		180
…		…
117	=item $cf::RUNTIME	187	=item $cf::RUNTIME
118		188
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	189	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	190	every server tick.
121		191
122	=item $cf::LIBDIR	192	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		193	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		194	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		195
124	The perl library directory, where extensions and cf-specific modules can	196	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	197	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		198	unique-items directory, player file directory, random maps directory and
		199	database environment.
126		200
127	=item $cf::NOW	201	=item $cf::NOW
128		202
129	The time of the last (current) server tick.	203	The time of the last (current) server tick.
130		204
131	=item $cf::TICK	205	=item $cf::TICK
132		206
133	The interval between server ticks, in seconds.	207	The interval between server ticks, in seconds.
134		208
		209	=item $cf::LOADAVG
		210
		211	The current CPU load on the server (alpha-smoothed), as a value between 0
		212	(none) and 1 (overloaded), indicating how much time is spent on processing
		213	objects per tick. Healthy values are < 0.5.
		214
		215	=item $cf::LOAD
		216
		217	The raw value load value from the last tick.
		218
135	=item %cf::CFG	219	=item %cf::CFG
136		220
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	221	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	222	from wherever your confdir points to.
139		223
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	224	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		225
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	226	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	227	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	228	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		229
		230	=item @cf::INVOKE_RESULTS
		231
		232	This array contains the results of the last C<invoke ()> call. When
		233	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		234	that call.
		235
		236	=item %cf::REFLECT
		237
		238	Contains, for each (C++) class name, a hash reference with information
		239	about object members (methods, scalars, arrays and flags) and other
		240	metadata, which is useful for introspection.
		241
146	=back	242	=back
147		243
148	=cut	244	=cut
149		245
150	BEGIN {	246	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	247	my $msg = join "", @_;
153		248
154	$msg .= "\n"	249	$msg .= "\n"
155	unless $msg =~ /\n$/;	250	unless $msg =~ /\n$/;
156		251
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	252	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		253
159	utf8::encode $msg;
160	LOG llevError, $msg;	254	LOG llevError, $msg;
161	};	255	};
162	}	256
		257	$Coro::State::DIEHOOK = sub {
		258	return unless $^S eq 0; # "eq", not "=="
		259
		260	warn Carp::longmess $_[0];
		261
		262	if ($Coro::current == $Coro::main) {#d#
		263	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		264	return;#d#
		265	}#d#
		266
		267	# kill coroutine otherwise
		268	Coro::terminate
		269	};
163		270
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	271	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	272	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	273	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	274	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	275	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		276	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	277	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		278
171	# we bless all objects into (empty) derived classes to force a method lookup	279	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	280	# within the Safe compartment.
173	for my $pkg (qw(	281	for my $pkg (qw(
174	cf::global cf::attachable	282	cf::global cf::attachable
175	cf::object cf::object::player	283	cf::object cf::object::player
176	cf::client cf::player	284	cf::client cf::player
177	cf::arch cf::living	285	cf::arch cf::living
		286	cf::map cf::mapspace
178	cf::map cf::party cf::region	287	cf::party cf::region
179	)) {	288	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	289	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	290	}
183		291
184	$Event::DIED = sub {	292	$EV::DIED = sub {
185	warn "error in event callback: @_";	293	warn "error in event callback: @_";
186	};	294	};
		295
		296	#############################################################################
187		297
188	=head2 UTILITY FUNCTIONS	298	=head2 UTILITY FUNCTIONS
189		299
190	=over 4	300	=over 4
191		301
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	320	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	321	$d
212	} || "[unable to dump $_[0]: '$@']";	322	} || "[unable to dump $_[0]: '$@']";
213	}	323	}
214		324
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	325	=item $ref = cf::decode_json $json
218		326
219	Converts a JSON string into the corresponding perl data structure.	327	Converts a JSON string into the corresponding perl data structure.
220		328
221	=item $json = cf::to_json $ref	329	=item $json = cf::encode_json $ref
222		330
223	Converts a perl data structure into its JSON representation.	331	Converts a perl data structure into its JSON representation.
224		332
		333	=cut
		334
		335	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		336
		337	sub encode_json($) { $json_coder->encode ($_[0]) }
		338	sub decode_json($) { $json_coder->decode ($_[0]) }
		339
		340	=item cf::post_init { BLOCK }
		341
		342	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		343	but I<before> the server starts ticking again.
		344
		345	The cdoeblock will have a single boolean argument to indicate whether this
		346	is a reload or not.
		347
		348	=cut
		349
		350	sub post_init(&) {
		351	push @POST_INIT, shift;
		352	}
		353
225	=item cf::lock_wait $string	354	=item cf::lock_wait $string
226		355
227	Wait until the given lock is available. See cf::lock_acquire.	356	Wait until the given lock is available. See cf::lock_acquire.
228		357
229	=item my $lock = cf::lock_acquire $string	358	=item my $lock = cf::lock_acquire $string
230		359
231	Wait until the given lock is available and then acquires it and returns	360	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	361	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	362	for example when the coroutine gets canceled), the lock is automatically
234	returned.	363	returned.
235		364
		365	Locks are *not* recursive, locking from the same coro twice results in a
		366	deadlocked coro.
		367
236	Lock names should begin with a unique identifier (for example, cf::map::find	368	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	369	uses map_find and cf::map::load uses map_load).
238		370
239	=cut	371	=item $locked = cf::lock_active $string
240		372
241	our %LOCK;	373	Return true if the lock is currently active, i.e. somebody has locked it.
		374
		375	=cut
		376
		377	our $LOCKS = new Coro::SemaphoreSet;
242		378
243	sub lock_wait($) {	379	sub lock_wait($) {
244	my ($key) = @_;	380	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	381	}
252		382
253	sub lock_acquire($) {	383	sub lock_acquire($) {
254	my ($key) = @_;	384	$LOCKS->guard ($_[0])
		385	}
255		386
256	# wait, to be sure we are not locked	387	sub lock_active($) {
257	lock_wait $key;	388	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	389	}
266		390
267	sub freeze_mainloop {	391	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	392	tick_inhibit_inc;
269		393
270	my $guard = Coro::guard {	394	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	395	}
		396
		397	=item cf::periodic $interval, $cb
		398
		399	Like EV::periodic, but randomly selects a starting point so that the actions
		400	get spread over timer.
		401
		402	=cut
		403
		404	sub periodic($$) {
		405	my ($interval, $cb) = @_;
		406
		407	my $start = rand List::Util::min 180, $interval;
		408
		409	EV::periodic $start, $interval, 0, $cb
		410	}
		411
		412	=item cf::get_slot $time[, $priority[, $name]]
		413
		414	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		415	This call blocks and returns only when you have at least C<$time> seconds
		416	of cpu time till the next tick. The slot is only valid till the next cede.
		417
		418	The optional C<$name> can be used to identify the job to run. It might be
		419	used for statistical purposes and should identify the same time-class.
		420
		421	Useful for short background jobs.
		422
		423	=cut
		424
		425	our @SLOT_QUEUE;
		426	our $SLOT_QUEUE;
		427
		428	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		429	$SLOT_QUEUE = Coro::async {
		430	$Coro::current->desc ("timeslot manager");
		431
		432	my $signal = new Coro::Signal;
		433
		434	while () {
		435	next_job:
		436	my $avail = cf::till_tick;
		437	if ($avail > 0.01) {
		438	for (0 .. $#SLOT_QUEUE) {
		439	if ($SLOT_QUEUE[$_][0] < $avail) {
		440	my $job = splice @SLOT_QUEUE, $_, 1, ();
		441	$job->[2]->send;
		442	Coro::cede;
		443	goto next_job;
		444	}
		445	}
		446	}
		447
		448	if (@SLOT_QUEUE) {
		449	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		450	push @cf::WAIT_FOR_TICK, $signal;
		451	$signal->wait;
		452	} else {
		453	Coro::schedule;
		454	}
272	};	455	}
273	$TICK_WATCHER->stop;	456	};
274	$guard	457
		458	sub get_slot($;$$) {
		459	return if tick_inhibit || $Coro::current == $Coro::main;
		460
		461	my ($time, $pri, $name) = @_;
		462
		463	$time = $TICK * .6 if $time > $TICK * .6;
		464	my $sig = new Coro::Signal;
		465
		466	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		467	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		468	$SLOT_QUEUE->ready;
		469	$sig->wait;
275	}	470	}
276		471
277	=item cf::async { BLOCK }	472	=item cf::async { BLOCK }
278		473
279	Currently the same as Coro::async_pool, meaning you cannot use	474	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		479
285	BEGIN { *async = \&Coro::async_pool }	480	BEGIN { *async = \&Coro::async_pool }
286		481
287	=item cf::sync_job { BLOCK }	482	=item cf::sync_job { BLOCK }
288		483
289	The design of crossfire+ requires that the main coro ($Coro::main) is	484	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	485	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	486	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		487	acceptable.
292		488
293	If it must be done, put the blocking parts into C<sync_job>. This will run	489	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	490	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	491	server will be frozen during this time, so the block should either finish
296	fast or be very important.	492	fast or be very important.
…		…
299		495
300	sub sync_job(&) {	496	sub sync_job(&) {
301	my ($job) = @_;	497	my ($job) = @_;
302		498
303	if ($Coro::current == $Coro::main) {	499	if ($Coro::current == $Coro::main) {
		500	my $time = EV::time;
		501
304	# this is the main coro, too bad, we have to block	502	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	503	# till the operation succeeds, freezing the server :/
306		504
307	# TODO: use suspend/resume instead	505	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	506
309	my $freeze_guard = freeze_mainloop;	507	my $freeze_guard = freeze_mainloop;
310		508
311	my $busy = 1;	509	my $busy = 1;
312	my @res;	510	my @res;
313		511
314	(async {	512	(async {
		513	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	514	@res = eval { $job->() };
316	warn $@ if $@;	515	warn $@ if $@;
317	undef $busy;	516	undef $busy;
318	})->prio (Coro::PRIO_MAX);	517	})->prio (Coro::PRIO_MAX);
319		518
320	while ($busy) {	519	while ($busy) {
321	Coro::cede or Event::one_event;	520	if (Coro::nready) {
		521	Coro::cede_notself;
		522	} else {
		523	EV::loop EV::LOOP_ONESHOT;
322	}	524	}
		525	}
		526
		527	my $time = EV::time - $time;
		528
		529	$TICK_START += $time; # do not account sync jobs to server load
323		530
324	wantarray ? @res : $res[0]	531	wantarray ? @res : $res[0]
325	} else {	532	} else {
326	# we are in another coroutine, how wonderful, everything just works	533	# we are in another coroutine, how wonderful, everything just works
327		534
…		…
347	$EXT_CORO{$coro+0} = $coro;	554	$EXT_CORO{$coro+0} = $coro;
348		555
349	$coro	556	$coro
350	}	557	}
351		558
352	sub write_runtime {	559	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		560
355	my $runtime = cf::localdir . "/runtime";	561	Executes the given code block with the given arguments in a seperate
		562	process, returning the results. Everything must be serialisable with
		563	Coro::Storable. May, of course, block. Note that the executed sub may
		564	never block itself or use any form of event handling.
356		565
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	566	=cut
358	or return;
359		567
360	my $value = $cf::RUNTIME + 90 + 10;	568	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	569	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		570
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	571	# we seemingly have to make a local copy of the whole thing,
365	and return;	572	# otherwise perl prematurely frees the stuff :/
		573	# TODO: investigate and fix (likely this will be rather laborious)
366		574
367	# always fsync - this file is important	575	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	576	reset_signals;
369	and return;	577	&$cb
		578	}, @args;
370		579
371	close $fh	580	wantarray ? @res : $res[-1]
372	or return;	581	}
373		582
374	aio_rename "$runtime~", $runtime	583	=item $coin = coin_from_name $name
375	and return;
376		584
		585	=cut
		586
		587	our %coin_alias = (
		588	"silver" => "silvercoin",
		589	"silvercoin" => "silvercoin",
		590	"silvercoins" => "silvercoin",
		591	"gold" => "goldcoin",
		592	"goldcoin" => "goldcoin",
		593	"goldcoins" => "goldcoin",
		594	"platinum" => "platinacoin",
		595	"platinumcoin" => "platinacoin",
		596	"platinumcoins" => "platinacoin",
		597	"platina" => "platinacoin",
		598	"platinacoin" => "platinacoin",
		599	"platinacoins" => "platinacoin",
		600	"royalty" => "royalty",
		601	"royalties" => "royalty",
		602	);
		603
		604	sub coin_from_name($) {
		605	$coin_alias{$_[0]}
		606	? cf::arch::find $coin_alias{$_[0]}
		607	: undef
		608	}
		609
		610	=item $value = cf::db_get $family => $key
		611
		612	Returns a single value from the environment database.
		613
		614	=item cf::db_put $family => $key => $value
		615
		616	Stores the given C<$value> in the family. It can currently store binary
		617	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		618
		619	=item $db = cf::db_table "name"
		620
		621	Create and/or open a new database table. The string must not be "db" and must be unique
		622	within each server.
		623
		624	=cut
		625
		626	sub db_table($) {
		627	my ($name) = @_;
		628	my $db = BDB::db_create $DB_ENV;
		629
		630	eval {
		631	$db->set_flags (BDB::CHKSUM);
		632
		633	utf8::encode $name;
		634	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		635	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		636	cf::cleanup "db_open(db): $!" if $!;
		637	};
		638	cf::cleanup "db_open(db): $@" if $@;
		639
		640	$db
		641	}
		642
		643	our $DB;
		644
		645	sub db_init {
		646	cf::sync_job {
		647	$DB ||= db_table "db";
		648	};
		649	}
		650
		651	sub db_get($$) {
		652	my $key = "$_[0]/$_[1]";
		653
		654	cf::sync_job {
		655	BDB::db_get $DB, undef, $key, my $data;
		656
		657	$! ? ()
		658	: $data
377	1	659	}
		660	}
		661
		662	sub db_put($$$) {
		663	BDB::dbreq_pri 4;
		664	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		665	}
		666
		667	=item cf::cache $id => [$paths...], $processversion => $process
		668
		669	Generic caching function that returns the value of the resource $id,
		670	caching and regenerating as required.
		671
		672	This function can block.
		673
		674	=cut
		675
		676	sub cache {
		677	my ($id, $src, $processversion, $process) = @_;
		678
		679	my $meta =
		680	join "\x00",
		681	$processversion,
		682	map {
		683	aio_stat $_
		684	and Carp::croak "$_: $!";
		685
		686	($_, (stat _)[7,9])
		687	} @$src;
		688
		689	my $dbmeta = db_get cache => "$id/meta";
		690	if ($dbmeta ne $meta) {
		691	# changed, we may need to process
		692
		693	my @data;
		694	my $md5;
		695
		696	for (0 .. $#$src) {
		697	0 <= aio_load $src->[$_], $data[$_]
		698	or Carp::croak "$src->[$_]: $!";
		699	}
		700
		701	# if processing is expensive, check
		702	# checksum first
		703	if (1) {
		704	$md5 =
		705	join "\x00",
		706	$processversion,
		707	map {
		708	cf::cede_to_tick;
		709	($src->[$_], Digest::MD5::md5_hex $data[$_])
		710	} 0.. $#$src;
		711
		712
		713	my $dbmd5 = db_get cache => "$id/md5";
		714	if ($dbmd5 eq $md5) {
		715	db_put cache => "$id/meta", $meta;
		716
		717	return db_get cache => "$id/data";
		718	}
		719	}
		720
		721	my $t1 = Time::HiRes::time;
		722	my $data = $process->(\@data);
		723	my $t2 = Time::HiRes::time;
		724
		725	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		726
		727	db_put cache => "$id/data", $data;
		728	db_put cache => "$id/md5" , $md5;
		729	db_put cache => "$id/meta", $meta;
		730
		731	return $data;
		732	}
		733
		734	db_get cache => "$id/data"
378	}	735	}
379		736
380	=item cf::datalog type => key => value, ...	737	=item cf::datalog type => key => value, ...
381		738
382	Log a datalog packet of the given type with the given key-value pairs.	739	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		751
395	#############################################################################	752	#############################################################################
396		753
397	=head2 ATTACHABLE OBJECTS	754	=head2 ATTACHABLE OBJECTS
398		755
399	Many objects in crossfire are so-called attachable objects. That means you can	756	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	757	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	758	to it. All such attachable objects support the following methods.
402		759
403	In the following description, CLASS can be any of C<global>, C<object>	760	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	761	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	762	Deliantra).
406		763
407	=over 4	764	=over 4
408		765
409	=item $attachable->attach ($attachment, key => $value...)	766	=item $attachable->attach ($attachment, key => $value...)
410		767
…		…
454	=item cf::CLASS::attachment $name, ...	811	=item cf::CLASS::attachment $name, ...
455		812
456	Register an attachment by C<$name> through which attachable objects of the	813	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	814	given CLASS can refer to this attachment.
458		815
459	Some classes such as crossfire maps and objects can specify attachments	816	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	817	that are attached at load/instantiate time, thus the need for a name.
461		818
462	These calls expect any number of the following handler/hook descriptions:	819	These calls expect any number of the following handler/hook descriptions:
463		820
464	=over 4	821	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	930	$registry = $CB_TYPE[$object_type] ||= [];
574		931
575	} elsif ($type eq "subtype") {	932	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	933	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	934	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	935	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		936
580	} elsif ($type eq "package") {	937	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	938	my $pkg = shift @arg;
582		939
583	while (my ($name, $id) = each %cb_id) {	940	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	969	_attach $registry, $klass, @attach;
613	}	970	}
614		971
615	$obj->{$name} = \%arg;	972	$obj->{$name} = \%arg;
616	} else {	973	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	974	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	975	}
619		976
620	$obj->{_attachment}{$name} = undef;	977	$obj->{_attachment}{$name} = undef;
621	}	978	}
622		979
…		…
624	if (ref $_[0]) {	981	if (ref $_[0]) {
625	_object_attach @_;	982	_object_attach @_;
626	} else {	983	} else {
627	_attach shift->_attach_registry, @_;	984	_attach shift->_attach_registry, @_;
628	}	985	}
		986	_recalc_want;
629	};	987	};
630		988
631	# all those should be optimised	989	# all those should be optimised
632	sub cf::attachable::detach {	990	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	991	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	994	delete $obj->{_attachment}{$name};
637	reattach ($obj);	995	reattach ($obj);
638	} else {	996	} else {
639	Carp::croak "cannot, currently, detach class attachments";	997	Carp::croak "cannot, currently, detach class attachments";
640	}	998	}
		999	_recalc_want;
641	};	1000	};
642		1001
643	sub cf::attachable::attached {	1002	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1003	my ($obj, $name) = @_;
645		1004
…		…
660	";	1019	";
661	die if $@;	1020	die if $@;
662	}	1021	}
663		1022
664	our $override;	1023	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1024	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1025
667	sub override {	1026	sub override {
668	$override = 1;	1027	$override = 1;
669	@invoke_results = ();	1028	@INVOKE_RESULTS = (@_);
670	}	1029	}
671		1030
672	sub do_invoke {	1031	sub do_invoke {
673	my $event = shift;	1032	my $event = shift;
674	my $callbacks = shift;	1033	my $callbacks = shift;
675		1034
676	@invoke_results = ();	1035	@INVOKE_RESULTS = ();
677		1036
678	local $override;	1037	local $override;
679		1038
680	for (@$callbacks) {	1039	for (@$callbacks) {
681	eval { &{$_->[1]} };	1040	eval { &{$_->[1]} };
…		…
690	}	1049	}
691		1050
692	0	1051	0
693	}	1052	}
694		1053
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1054	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1055
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1056	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1057
699	Generate an object-specific event with the given arguments.	1058	Generate an object-specific event with the given arguments.
700		1059
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1060	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1061	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1062	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1063
705	=back	1064	=back
706		1065
707	=cut	1066	=cut
708		1067
709	#############################################################################	1068	#############################################################################
710	# object support	1069	# object support
		1070
		1071	sub _object_equal($$);
		1072	sub _object_equal($$) {
		1073	my ($a, $b) = @_;
		1074
		1075	return 0 unless (ref $a) eq (ref $b);
		1076
		1077	if ("HASH" eq ref $a) {
		1078	my @ka = keys %$a;
		1079	my @kb = keys %$b;
		1080
		1081	return 0 if @ka != @kb;
		1082
		1083	for (0 .. $#ka) {
		1084	return 0 unless $ka[$_] eq $kb[$_];
		1085	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1086	}
		1087
		1088	} elsif ("ARRAY" eq ref $a) {
		1089
		1090	return 0 if @$a != @$b;
		1091
		1092	for (0 .. $#$a) {
		1093	return 0 unless _object_equal $a->[$_], $b->[$_];
		1094	}
		1095
		1096	} elsif ($a ne $b) {
		1097	return 0;
		1098	}
		1099
		1100	1
		1101	}
		1102
		1103	our $SLOW_MERGES;#d#
		1104	sub _can_merge {
		1105	my ($ob1, $ob2) = @_;
		1106
		1107	++$SLOW_MERGES;#d#
		1108
		1109	# we do the slow way here
		1110	return _object_equal $ob1, $ob2
		1111	}
711		1112
712	sub reattach {	1113	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1114	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1115	my ($obj) = @_;
715		1116
		1117	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1118	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1119
718	my $registry = $obj->registry;	1120	my $registry = $obj->registry;
719		1121
720	@$registry = ();	1122	@$registry = ();
721		1123
…		…
736	cf::attachable->attach (	1138	cf::attachable->attach (
737	prio => -1000000,	1139	prio => -1000000,
738	on_instantiate => sub {	1140	on_instantiate => sub {
739	my ($obj, $data) = @_;	1141	my ($obj, $data) = @_;
740		1142
741	$data = from_json $data;	1143	$data = decode_json $data;
742		1144
743	for (@$data) {	1145	for (@$data) {
744	my ($name, $args) = @$_;	1146	my ($name, $args) = @$_;
745		1147
746	$obj->attach ($name, %{$args || {} });	1148	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1164	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1165	my ($filename, $rdata, $objs) = @_;
764		1166
765	sync_job {	1167	sync_job {
766	if (length $$rdata) {	1168	if (length $$rdata) {
		1169	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1170	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1171	$decname, length $$rdata, scalar @$objs;
769		1172
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1173	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1174	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1175	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1176	if ($cf::USE_FSYNC) {
		1177	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1178	aio_fsync $fh;
		1179	}
774	close $fh;	1180	aio_close $fh;
775		1181
776	if (@$objs) {	1182	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1183	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1184	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1185	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1186	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1187	if ($cf::USE_FSYNC) {
		1188	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1189	aio_fsync $fh;
		1190	}
782	close $fh;	1191	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1192	aio_rename "$filename.pst~", "$filename.pst";
784	}	1193	}
785	} else {	1194	} else {
786	aio_unlink "$filename.pst";	1195	aio_unlink "$filename.pst";
787	}	1196	}
788		1197
789	aio_rename "$filename~", $filename;	1198	aio_rename "$filename~", $filename;
		1199
		1200	$filename =~ s%/[^/]+$%%;
		1201	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1202	} else {
791	warn "FATAL: $filename~: $!\n";	1203	warn "unable to save objects: $filename~: $!\n";
792	}	1204	}
793	} else {	1205	} else {
794	aio_unlink $filename;	1206	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1207	aio_unlink "$filename.pst";
796	}	1208	}
797	}	1209	};
798	}	1210	}
799		1211
800	sub object_freezer_as_string {	1212	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1213	my ($rdata, $objs) = @_;
802		1214
…		…
814	or return;	1226	or return;
815		1227
816	unless (aio_stat "$filename.pst") {	1228	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1229	(aio_load "$filename.pst", $av) >= 0
818	or return;	1230	or return;
		1231
819	$av = eval { (Storable::thaw $av)->{objs} };	1232	my $st = eval { Coro::Storable::thaw $av };
		1233	$av = $st->{objs};
820	}	1234	}
821		1235
		1236	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1237	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1238	$decname, length $data, scalar @{$av || []};
		1239
824	return ($data, $av);	1240	($data, $av)
825	}	1241	}
		1242
		1243	=head2 COMMAND CALLBACKS
		1244
		1245	=over 4
		1246
		1247	=cut
826		1248
827	#############################################################################	1249	#############################################################################
828	# command handling &c	1250	# command handling &c
829		1251
830	=item cf::register_command $name => \&callback($ob,$args);	1252	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1265	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1266	}
845		1267
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1268	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1269
848	Register a callbackf ro execution when the client sends an extcmd packet.	1270	Register a callback for execution when the client sends an (synchronous)
		1271	extcmd packet. Ext commands will be processed in the order they are
		1272	received by the server, like other user commands. The first argument is
		1273	the logged-in player. Ext commands can only be processed after a player
		1274	has logged in successfully.
849		1275
850	If the callback returns something, it is sent back as if reply was being	1276	If the callback returns something, it is sent back as if reply was being
851	called.	1277	called.
852		1278
		1279	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1280
		1281	Register a callback for execution when the client sends an (asynchronous)
		1282	exticmd packet. Exti commands are processed by the server as soon as they
		1283	are received, i.e. out of order w.r.t. other commands. The first argument
		1284	is a client socket. Exti commands can be received anytime, even before
		1285	log-in.
		1286
		1287	If the callback returns something, it is sent back as if reply was being
		1288	called.
		1289
853	=cut	1290	=cut
854		1291
855	sub register_extcmd {	1292	sub register_extcmd {
856	my ($name, $cb) = @_;	1293	my ($name, $cb) = @_;
857		1294
858	$EXTCMD{$name} = $cb;	1295	$EXTCMD{$name} = $cb;
859	}	1296	}
		1297
		1298	sub register_exticmd {
		1299	my ($name, $cb) = @_;
		1300
		1301	$EXTICMD{$name} = $cb;
		1302	}
		1303
		1304	use File::Glob ();
860		1305
861	cf::player->attach (	1306	cf::player->attach (
862	on_command => sub {	1307	on_command => sub {
863	my ($pl, $name, $params) = @_;	1308	my ($pl, $name, $params) = @_;
864		1309
…		…
872	cf::override;	1317	cf::override;
873	},	1318	},
874	on_extcmd => sub {	1319	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1320	my ($pl, $buf) = @_;
876		1321
877	my $msg = eval { from_json $buf };	1322	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1323
879	if (ref $msg) {	1324	if (ref $msg) {
		1325	my ($type, $reply, @payload) =
		1326	"ARRAY" eq ref $msg
		1327	? @$msg
		1328	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1329
		1330	my @reply;
		1331
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1332	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1333	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1334	}
		1335
		1336	$pl->ext_reply ($reply, @reply)
		1337	if $reply;
		1338
885	} else {	1339	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1340	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1341	}
888		1342
889	cf::override;	1343	cf::override;
890	},	1344	},
891	);	1345	);
892		1346
		1347	# "readahead" all extensions
893	sub load_extension {	1348	sub cache_extensions {
894	my ($path) = @_;	1349	my $grp = IO::AIO::aio_group;
895		1350
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1351	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1352	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1353	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1354	}
921	die $@;
922	}	1355	};
923		1356
924	push @EXTS, $pkg;	1357	$grp
925	}	1358	}
926		1359
927	sub load_extensions {	1360	sub load_extensions {
		1361	cf::sync_job {
		1362	my %todo;
		1363
928	for my $ext (<$LIBDIR/*.ext>) {	1364	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1365	next unless -r $path;
930	eval {	1366
931	load_extension $ext;	1367	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1368	my $base = $1;
		1369	my $pkg = $1;
		1370	$pkg =~ s/[^[:word:]]/_/g;
		1371	$pkg = "ext::$pkg";
		1372
		1373	open my $fh, "<:utf8", $path
		1374	or die "$path: $!";
		1375
		1376	my $source = do { local $/; <$fh> };
		1377
		1378	my %ext = (
		1379	path => $path,
		1380	base => $base,
		1381	pkg => $pkg,
		1382	);
		1383
		1384	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1385	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1386
		1387	$ext{source} =
		1388	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1389	. "#line 1 \"$path\"\n{\n"
		1390	. $source
		1391	. "\n};\n1";
		1392
		1393	$todo{$base} = \%ext;
		1394	}
		1395
		1396	my %done;
		1397	while (%todo) {
		1398	my $progress;
		1399
		1400	while (my ($k, $v) = each %todo) {
		1401	for (split /,\s*/, $v->{meta}{depends}) {
		1402	goto skip
		1403	unless exists $done{$_};
		1404	}
		1405
		1406	warn "... loading '$k' into '$v->{pkg}'\n";
		1407
		1408	unless (eval $v->{source}) {
		1409	my $msg = $@ ? "$v->{path}: $@\n"
		1410	: "$v->{base}: extension inactive.\n";
		1411
		1412	if (exists $v->{meta}{mandatory}) {
		1413	warn $msg;
		1414	cf::cleanup "mandatory extension failed to load, exiting.";
		1415	}
		1416
		1417	warn $msg;
		1418	}
		1419
		1420	$done{$k} = delete $todo{$k};
		1421	push @EXTS, $v->{pkg};
		1422	$progress = 1;
932	1	1423	}
933	} or warn "$ext not loaded: $@";	1424
		1425	skip:
		1426	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1427	unless $progress;
		1428	}
934	}	1429	};
935	}	1430	}
936		1431
937	#############################################################################	1432	#############################################################################
938		1433
		1434	=back
		1435
939	=head2 CORE EXTENSIONS	1436	=head2 CORE EXTENSIONS
940		1437
941	Functions and methods that extend core crossfire objects.	1438	Functions and methods that extend core deliantra objects.
942		1439
943	=cut	1440	=cut
944		1441
945	package cf::player;	1442	package cf::player;
946		1443
…		…
948		1445
949	=head3 cf::player	1446	=head3 cf::player
950		1447
951	=over 4	1448	=over 4
952		1449
		1450	=item cf::player::num_playing
		1451
		1452	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1453
		1454	=cut
		1455
		1456	sub num_playing {
		1457	scalar grep
		1458	$_->ob->map
		1459	&& !$_->hidden
		1460	&& !$_->ob->flag (cf::FLAG_WIZ),
		1461	cf::player::list
		1462	}
		1463
953	=item cf::player::find $login	1464	=item cf::player::find $login
954		1465
955	Returns the given player object, loading it if necessary (might block).	1466	Returns the given player object, loading it if necessary (might block).
956		1467
957	=cut	1468	=cut
958		1469
959	sub playerdir($) {	1470	sub playerdir($) {
960	cf::localdir	1471	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1472	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1473	}
966		1474
967	sub path($) {	1475	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1476	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1486
979	sub exists($) {	1487	sub exists($) {
980	my ($login) = @_;	1488	my ($login) = @_;
981		1489
982	$cf::PLAYER{$login}	1490	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1491	or !aio_stat path $login
984	}	1492	}
985		1493
986	sub find($) {	1494	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1495	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1496	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1503	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1504	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1505	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1506	aio_unlink +(playerdir $login) . "/$login.pl";
999		1507
1000	my $pl = load_pl path $login	1508	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1509	or return;
		1510
		1511	my $pl = cf::player::load_pl $f
		1512	or return;
		1513
		1514	local $cf::PLAYER_LOADING{$login} = $pl;
		1515	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1516	$cf::PLAYER{$login} = $pl
1003	}	1517	}
1004	}	1518	}
1005	}	1519	}
1006		1520
…		…
1015	return if $pl->{deny_save};	1529	return if $pl->{deny_save};
1016		1530
1017	aio_mkdir playerdir $pl, 0770;	1531	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1532	$pl->{last_save} = $cf::RUNTIME;
1019		1533
		1534	cf::get_slot 0.01;
		1535
1020	$pl->save_pl ($path);	1536	$pl->save_pl ($path);
1021	Coro::cede;	1537	cf::cede_to_tick;
1022	}	1538	}
1023		1539
1024	sub new($) {	1540	sub new($) {
1025	my ($login) = @_;	1541	my ($login) = @_;
1026		1542
…		…
1032	$cf::PLAYER{$login} = $self;	1548	$cf::PLAYER{$login} = $self;
1033		1549
1034	$self	1550	$self
1035	}	1551	}
1036		1552
		1553	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1554
		1555	=cut
		1556
		1557	sub send_msg {
		1558	my $ns = shift->ns
		1559	or return;
		1560	$ns->send_msg (@_);
		1561	}
		1562
1037	=item $pl->quit_character	1563	=item $pl->quit_character
1038		1564
1039	Nukes the player without looking back. If logged in, the connection will	1565	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1566	be destroyed. May block for a long time.
1041		1567
…		…
1045	my ($pl) = @_;	1571	my ($pl) = @_;
1046		1572
1047	my $name = $pl->ob->name;	1573	my $name = $pl->ob->name;
1048		1574
1049	$pl->{deny_save} = 1;	1575	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1576	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1577
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1578	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1579	$pl->deactivate;
		1580	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1581	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1582	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1583	$pl->ns->destroy if $pl->ns;
1056		1584
1057	my $path = playerdir $pl;	1585	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1586	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1616	while and may block, so not sync_job-capable, ever.
1089		1617
1090	=cut	1618	=cut
1091		1619
1092	sub list_logins {	1620	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1621	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1622	or return [];
1095		1623
1096	my @logins;	1624	my @logins;
1097		1625
1098	for my $login (@$dirs) {	1626	for my $login (@$dirs) {
		1627	my $path = path $login;
		1628
		1629	# a .pst is a dead give-away for a valid player
		1630	# if no pst file found, open and chekc for blocked users
		1631	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1632	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1633	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1634	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1635	}
1102		1636
1103	utf8::decode $login;	1637	utf8::decode $login;
1104	push @logins, $login;	1638	push @logins, $login;
1105	}	1639	}
1106		1640
…		…
1133	}	1667	}
1134		1668
1135	\@paths	1669	\@paths
1136	}	1670	}
1137		1671
		1672	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1673
		1674	Expand deliantra pod fragments into protocol xml.
		1675
1138	=item $player->ext_reply ($msgid, %msg)	1676	=item $player->ext_reply ($msgid, @msg)
1139		1677
1140	Sends an ext reply to the player.	1678	Sends an ext reply to the player.
1141		1679
1142	=cut	1680	=cut
1143		1681
1144	sub ext_reply($$%) {	1682	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1683	my ($self, $id, @msg) = @_;
1146		1684
1147	$msg{msgid} = $id;	1685	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1686	}
1151		1687
1152	=item $player->ext_event ($type, %msg)	1688	=item $player->ext_msg ($type, @msg)
1153		1689
1154	Sends an ext event to the client.	1690	Sends an ext event to the client.
1155		1691
1156	=cut	1692	=cut
1157		1693
1158	sub ext_event($$%) {	1694	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1695	my ($self, $type, @msg) = @_;
1160		1696
1161	$self->ns->ext_event ($type, %msg);	1697	$self->ns->ext_msg ($type, @msg);
1162	}	1698	}
1163		1699
1164	=head3 cf::region	1700	=head3 cf::region
1165		1701
1166	=over 4	1702	=over 4
…		…
1169		1705
1170	package cf::region;	1706	package cf::region;
1171		1707
1172	=item cf::region::find_by_path $path	1708	=item cf::region::find_by_path $path
1173		1709
1174	Tries to decuce the probable region for a map knowing only its path.	1710	Tries to decuce the likely region for a map knowing only its path.
1175		1711
1176	=cut	1712	=cut
1177		1713
1178	sub find_by_path($) {	1714	sub find_by_path($) {
1179	my ($path) = @_;	1715	my ($path) = @_;
1180		1716
1181	my ($match, $specificity);	1717	my ($match, $specificity);
1182		1718
1183	for my $region (list) {	1719	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1720	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1721	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1722	if $region->specificity > $specificity;
1187	}	1723	}
1188	}	1724	}
1189		1725
…		…
1210	our $MAX_RESET = 3600;	1746	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1747	our $DEFAULT_RESET = 3000;
1212		1748
1213	sub generate_random_map {	1749	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1750	my ($self, $rmp) = @_;
		1751
		1752	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1753
1215	# mit "rum" bekleckern, nicht	1754	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1755	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1756	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1757	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1758	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1792	my ($self, $merge) = @_;
1254		1793
1255	# we have to keep some variables in memory intact	1794	# we have to keep some variables in memory intact
1256	local $self->{path};	1795	local $self->{path};
1257	local $self->{load_path};	1796	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1797
1261	$self->SUPER::thawer_merge ($merge);	1798	$self->SUPER::thawer_merge ($merge);
1262	}	1799	}
1263		1800
1264	sub normalise {	1801	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1848	$self->init; # pass $1 etc.
1312	return $self;	1849	return $self;
1313	}	1850	}
1314	}	1851	}
1315		1852
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1853	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1854	()
1318	}	1855	}
1319		1856
1320	sub init {	1857	sub init {
1321	my ($self) = @_;	1858	my ($self) = @_;
…		…
1336		1873
1337	# the original (read-only) location	1874	# the original (read-only) location
1338	sub load_path {	1875	sub load_path {
1339	my ($self) = @_;	1876	my ($self) = @_;
1340		1877
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1878	"$MAPDIR/$self->{path}.map"
1342	}	1879	}
1343		1880
1344	# the temporary/swap location	1881	# the temporary/swap location
1345	sub save_path {	1882	sub save_path {
1346	my ($self) = @_;	1883	my ($self) = @_;
1347		1884
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1885	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1886	"$TMPDIR/$path.map"
1350	}	1887	}
1351		1888
1352	# the unique path, undef == no special unique path	1889	# the unique path, undef == no special unique path
1353	sub uniq_path {	1890	sub uniq_path {
1354	my ($self) = @_;	1891	my ($self) = @_;
1355		1892
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1894	"$UNIQUEDIR/$path"
1358	}	1895	}
1359		1896
1360	# and all this just because we cannot iterate over	1897	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1898	my ($self) = @_;
1364		1899
1365	$_->change_map_light ($change)	1900	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1901
		1902	$self->do_decay_objects;
1367	}	1903	}
1368		1904
1369	sub unlink_save {	1905	sub unlink_save {
1370	my ($self) = @_;	1906	my ($self) = @_;
1371		1907
…		…
1376		1912
1377	sub load_header_from($) {	1913	sub load_header_from($) {
1378	my ($self, $path) = @_;	1914	my ($self, $path) = @_;
1379		1915
1380	utf8::encode $path;	1916	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1917	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1918	or return;
		1919
		1920	$self->_load_header ($f)
		1921	or return;
		1922
		1923	local $MAP_LOADING{$self->{path}} = $self;
		1924	$f->resolve_delayed_derefs;
1386		1925
1387	$self->{load_path} = $path;	1926	$self->{load_path} = $path;
1388		1927
1389	1	1928	1
1390	}	1929	}
…		…
1429	$self->load_header_orig	1968	$self->load_header_orig
1430	or return;	1969	or return;
1431	$self->prepare_orig;	1970	$self->prepare_orig;
1432	}	1971	}
1433		1972
		1973	$self->{deny_reset} = 1
		1974	if $self->no_reset;
		1975
1434	$self->default_region (cf::region::find_by_path $self->{path})	1976	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1977	unless $self->default_region;
1436		1978
1437	1	1979	1
1438	}	1980	}
…		…
1441	sub find {	1983	sub find {
1442	my ($path, $origin) = @_;	1984	my ($path, $origin) = @_;
1443		1985
1444	$path = normalise $path, $origin && $origin->path;	1986	$path = normalise $path, $origin && $origin->path;
1445		1987
		1988	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1989	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1990
1448	$cf::MAP{$path} || do {	1991	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1451	or return;	1993	or return;
1452		1994
1453	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1454		1996
1455	$map->load_header	1997	$map->load_header
1456	or return;	1998	or return;
1457		1999
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard2;
		2004	undef $guard1;
1461	$map->reset;	2005	$map->reset;
1462	undef $guard;
1463	return find $path;	2006	return find $path;
1464	}	2007	}
1465		2008
1466	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1467	}	2010	}
…		…
1474	my ($self) = @_;	2017	my ($self) = @_;
1475		2018
1476	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1477		2020
1478	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1480		2025
		2026	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2028
1483	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1484		2030
1485	$self->alloc;	2031	$self->alloc;
1486		2032
1487	$self->pre_load;	2033	$self->pre_load;
1488	Coro::cede;	2034	cf::cede_to_tick;
1489		2035
1490	$self->_load_objects ($self->{load_path}, 1)	2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1491	or return;	2039	or return;
1492		2040
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->post_load_original
1494	if delete $self->{load_original};	2042	if delete $self->{load_original};
1495		2043
1496	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2045	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2048	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1501	}	2052	}
1502	}	2053	}
1503		2054
1504	Coro::cede;	2055	$f->resolve_delayed_derefs;
		2056
		2057	cf::cede_to_tick;
1505	# now do the right thing for maps	2058	# now do the right thing for maps
1506	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2061	unless $self->difficulty;
1517	Coro::cede;	2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
1518	$self->activate;	2069	$self->activate;
1519	Coro::cede;	2070	}
		2071
		2072	$self->{last_save} = $cf::RUNTIME;
		2073	$self->last_access ($cf::RUNTIME);
		2074
		2075	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2076	}
1521		2077
1522	$self->post_load;	2078	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2079	}
1527		2080
1528	sub customise_for {	2081	sub customise_for {
1529	my ($self, $ob) = @_;	2082	my ($self, $ob) = @_;
1530		2083
1531	return find "~" . $ob->name . "/" . $self->{path}	2084	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2085	if $self->per_player;
1533		2086
		2087	# return find "?party/" . $ob->name . "/" . $self->{path}
		2088	# if $self->per_party;
		2089
1534	$self	2090	$self
1535	}	2091	}
1536		2092
1537	# find and load all maps in the 3x3 area around a map	2093	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2094	sub load_neighbours {
1539	my ($map) = @_;	2095	my ($map) = @_;
1540		2096
1541	my @diag; # diagonal neighbours	2097	my @neigh; # diagonal neighbours
1542		2098
1543	for (0 .. 3) {	2099	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2100	my $neigh = $map->tile_path ($_)
1545	or next;	2101	or next;
1546	$neigh = find $neigh, $map	2102	$neigh = find $neigh, $map
1547	or next;	2103	or next;
1548	$neigh->load;	2104	$neigh->load;
1549		2105
		2106	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2107	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2108	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2109	}
1553		2110
1554	for (@diag) {	2111	for (grep defined $_->[0], @neigh) {
		2112	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2113	my $neigh = find $path, $origin
1556	or next;	2114	or next;
1557	$neigh->load;	2115	$neigh->load;
1558	}	2116	}
1559	}	2117	}
1560		2118
…		…
1565	}	2123	}
1566		2124
1567	sub do_load_sync {	2125	sub do_load_sync {
1568	my ($map) = @_;	2126	my ($map) = @_;
1569		2127
		2128	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2129	if $Coro::current == $Coro::main;
		2130
1570	cf::sync_job { $map->load };	2131	cf::sync_job { $map->load };
1571	}	2132	}
1572		2133
1573	our %MAP_PREFETCH;	2134	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2135	our $MAP_PREFETCHER = undef;
1575		2136
1576	sub find_async {	2137	sub find_async {
1577	my ($path, $origin) = @_;	2138	my ($path, $origin, $load) = @_;
1578		2139
1579	$path = normalise $path, $origin && $origin->{path};	2140	$path = normalise $path, $origin && $origin->{path};
1580		2141
1581	if (my $map = $cf::MAP{$path}) {	2142	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2143	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2144	}
1584		2145
1585	undef $MAP_PREFETCH{$path};	2146	$MAP_PREFETCH{$path} |= $load;
		2147
1586	$MAP_PREFETCHER ||= cf::async {	2148	$MAP_PREFETCHER ||= cf::async {
		2149	$Coro::current->{desc} = "map prefetcher";
		2150
1587	while (%MAP_PREFETCH) {	2151	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2152	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2153	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2154	$map->load if $v;
		2155	}
1592		2156
1593	delete $MAP_PREFETCH{$path};	2157	delete $MAP_PREFETCH{$k};
1594	}	2158	}
1595	}	2159	}
1596	undef $MAP_PREFETCHER;	2160	undef $MAP_PREFETCHER;
1597	};	2161	};
1598	$MAP_PREFETCHER->prio (6);	2162	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2165	}
1602		2166
1603	sub save {	2167	sub save {
1604	my ($self) = @_;	2168	my ($self) = @_;
1605		2169
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2170	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2171
1608	$self->{last_save} = $cf::RUNTIME;	2172	$self->{last_save} = $cf::RUNTIME;
1609		2173
1610	return unless $self->dirty;	2174	return unless $self->dirty;
1611		2175
…		…
1617	return if $self->{deny_save};	2181	return if $self->{deny_save};
1618		2182
1619	local $self->{last_access} = $self->last_access;#d#	2183	local $self->{last_access} = $self->last_access;#d#
1620		2184
1621	cf::async {	2185	cf::async {
		2186	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2187	$_->contr->save for $self->players;
1623	};	2188	};
		2189
		2190	cf::get_slot 0.02;
1624		2191
1625	if ($uniq) {	2192	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2195	} else {
…		…
1634	my ($self) = @_;	2201	my ($self) = @_;
1635		2202
1636	# save first because save cedes	2203	# save first because save cedes
1637	$self->save;	2204	$self->save;
1638		2205
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2207
1641	return if $self->players;	2208	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2210	return if $self->{deny_save};
1644		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2216	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2217	}
1648		2218
1649	sub reset_at {	2219	sub reset_at {
1650	my ($self) = @_;	2220	my ($self) = @_;
1651		2221
1652	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1655		2224
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2227
…		…
1669	my ($self) = @_;	2238	my ($self) = @_;
1670		2239
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2241
1673	return if $self->players;	2242	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2243
1676	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path, "\n";
1677		2245
1678	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1679		2247
1680	# need to save uniques path	2248	# need to save uniques path
1681	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2253	if $uniq;
1686	}	2254	}
1687		2255
1688	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1689		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2260	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2261
1694	$self->unlink_save;	2262	$self->unlink_save;
1695	$self->destroy;	2263	$self->destroy;
1696	}	2264	}
1697		2265
1698	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1699		2267
1700	sub nuke {	2268	sub nuke {
1701	my ($self) = @_;	2269	my ($self) = @_;
1702		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1703	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1704		2275
1705	$self->unlink_save;	2276	$self->unlink_save;
1706		2277
1707	bless $self, "cf::map";	2278	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2283
1713	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1714		2286
1715	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1716	}	2324	}
1717		2325
1718	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1719		2327
1720	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2329	instantiated unique items. May block.
1722		2330
1723	=cut	2331	=cut
1724		2332
1725	sub unique_maps() {	2333	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1727	or return;	2335	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2336	utf8::decode $_;
1733	next if /\.pst$/;	2337	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2338	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2339	? ()
1736	push @paths, cf::map::normalise $_;	2340	: normalise $_
		2341	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2342	]
1738
1739	\@paths
1740	}	2343	}
1741
1742	package cf;
1743		2344
1744	=back	2345	=back
1745		2346
1746	=head3 cf::object	2347	=head3 cf::object
1747		2348
…		…
1751		2352
1752	=over 4	2353	=over 4
1753		2354
1754	=item $ob->inv_recursive	2355	=item $ob->inv_recursive
1755		2356
1756	Returns the inventory of the object _and_ their inventories, recursively.	2357	Returns the inventory of the object I<and> their inventories, recursively,
		2358	but I<not> the object itself.
1757		2359
1758	=cut	2360	=cut
1759		2361
1760	sub inv_recursive_;	2362	sub inv_recursive_;
1761	sub inv_recursive_ {	2363	sub inv_recursive_ {
…		…
1764		2366
1765	sub inv_recursive {	2367	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
1767	}	2369	}
1768		2370
		2371	=item $ref = $ob->ref
		2372
		2373	Creates and returns a persistent reference to an object that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
		2397	}
		2398
1769	package cf;	2399	package cf;
1770		2400
1771	=back	2401	=back
1772		2402
1773	=head3 cf::object::player	2403	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2409	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2410	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2411	dialogue with the given NPC character.
1782		2412
1783	=cut	2413	=cut
		2414
		2415	our $SAY_CHANNEL = {
		2416	id => "say",
		2417	title => "Map",
		2418	reply => "say ",
		2419	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2420	};
		2421
		2422	our $CHAT_CHANNEL = {
		2423	id => "chat",
		2424	title => "Chat",
		2425	reply => "chat ",
		2426	tooltip => "Player chat and shouts, global to the server.",
		2427	};
1784		2428
1785	# rough implementation of a future "reply" method that works	2429	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2430	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2431	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2432	sub cf::object::player::reply($$$;$) {
…		…
1790		2434
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2436
1793	if ($self->{record_replies}) {	2437	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2439
1795	} else {	2440	} else {
		2441	my $pl = $self->contr;
		2442
		2443	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2444	my $dialog = $pl->{npc_dialog};
		2445	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2446
		2447	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2448	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2449	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2450	}
1798	}	2451	}
		2452	}
		2453
		2454	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2455
		2456	=cut
		2457
		2458	sub cf::object::send_msg {
		2459	my $pl = shift->contr
		2460	or return;
		2461	$pl->send_msg (@_);
1799	}	2462	}
1800		2463
1801	=item $player_object->may ("access")	2464	=item $player_object->may ("access")
1802		2465
1803	Returns wether the given player is authorized to access resource "access"	2466	Returns wether the given player is authorized to access resource "access"
…		…
1816		2479
1817	=item $player_object->enter_link	2480	=item $player_object->enter_link
1818		2481
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2482	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2483
1821	The player should be reasonably safe there for short amounts of time. You	2484	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2485	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2486	though, as the palyer cannot control the character while it is on the link
		2487	map.
1823		2488
1824	Will never block.	2489	Will never block.
1825		2490
1826	=item $player_object->leave_link ($map, $x, $y)	2491	=item $player_object->leave_link ($map, $x, $y)
1827		2492
…		…
1850	$self->deactivate_recursive;	2515	$self->deactivate_recursive;
1851		2516
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2517	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2518
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2520	if $self->map && $self->map->{path} ne "{link}";
1856		2521
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2522	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2523	}
1859		2524
1860	sub cf::object::player::leave_link {	2525	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2526	my ($self, $map, $x, $y) = @_;
		2527
		2528	return unless $self->contr->active;
1862		2529
1863	my $link_pos = delete $self->{_link_pos};	2530	my $link_pos = delete $self->{_link_pos};
1864		2531
1865	unless ($map) {	2532	unless ($map) {
1866	# restore original map position	2533	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2547	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2548	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2549	if $x <=0 && $y <= 0;
1883		2550
1884	$map->load;	2551	$map->load;
1885	$map->load_diag;	2552	$map->load_neighbours;
1886		2553
1887	return unless $self->contr->active;	2554	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2555
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2556	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2557	$self->enter_map ($map, $x, $y);
1892	}
1893		2558
1894	cf::player->attach (	2559	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2560	$self->activate_recursive;
1896	my ($pl) = @_;	2561	}
1897		2562
1898	# abort map switching before logout	2563	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2564
1908	# try to abort aborted map switching on player login :)	2565	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2566	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2567	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2568	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2569	be called at the end of this process.
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2570
1926	=item $player_object->goto ($path, $x, $y)	2571	Note that $check will be called with a potentially non-loaded map, so if
		2572	it needs a loaded map it has to call C<< ->load >>.
1927		2573
1928	=cut	2574	=cut
		2575
		2576	our $GOTOGEN;
1929		2577
1930	sub cf::object::player::goto {	2578	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2579	my ($self, $path, $x, $y, $check, $done) = @_;
		2580
		2581	# do generation counting so two concurrent goto's will be executed in-order
		2582	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2583
1933	$self->enter_link;	2584	$self->enter_link;
1934		2585
1935	(async {	2586	(async {
		2587	$Coro::current->{desc} = "player::goto $path $x $y";
		2588
		2589	# *tag paths override both path and x|y
		2590	if ($path =~ /^\*(.*)$/) {
		2591	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2592	my $ob = $obs[rand @obs];
		2593
		2594	# see if we actually can go there
		2595	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2596	$ob = $obs[rand @obs];
		2597	} else {
		2598	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600	# else put us there anyways for now #d#
		2601
		2602	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2603	} else {
		2604	($path, $x, $y) = (undef, undef, undef);
		2605	}
		2606	}
		2607
1936	my $map = eval {	2608	my $map = eval {
1937	my $map = cf::map::find $path;	2609	my $map = defined $path ? cf::map::find $path : undef;
		2610
		2611	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2612	$map = $map->customise_for ($self);
		2613	$map = $check->($map) if $check && $map;
		2614	} else {
		2615	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2616	}
		2617
1939	$map	2618	$map
		2619	};
		2620
		2621	if ($@) {
		2622	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2623	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2624	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2625
		2626	if ($gen == $self->{_goto_generation}) {
		2627	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2628	$self->leave_link ($map, $x, $y);
		2629	}
		2630
		2631	$done->() if $done;
1944	})->prio (1);	2632	})->prio (1);
1945	}	2633	}
1946		2634
1947	=item $player_object->enter_exit ($exit_object)	2635	=item $player_object->enter_exit ($exit_object)
1948		2636
…		…
1968	}	2656	}
1969		2657
1970	sub prepare_random_map {	2658	sub prepare_random_map {
1971	my ($exit) = @_;	2659	my ($exit) = @_;
1972		2660
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2661	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2662	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2663	# that depends on the exit object
1978		2664
1979	my $rmp = parse_random_map_params $exit->msg;	2665	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2667	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2668	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2669	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2670	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2671	$rmp->{origin_y} = $exit->y;
		2672
		2673	$exit->map->touch;
1986	}	2674	}
1987		2675
1988	$rmp->{random_seed} ||= $exit->random_seed;	2676	$rmp->{random_seed} ||= $exit->random_seed;
1989		2677
1990	my $data = cf::to_json $rmp;	2678	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2679	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2680	my $meta = "$RANDOMDIR/$md5.meta";
1993		2681
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2682	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2683	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2684	undef $fh;
1997	aio_rename "$meta~", $meta;	2685	aio_rename "$meta~", $meta;
1998		2686
		2687	my $slaying = "?random/$md5";
		2688
		2689	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2690	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2691	$exit->msg (undef);
		2692	}
2001	}	2693	}
2002	}	2694	}
2003		2695
2004	sub cf::object::player::enter_exit {	2696	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2697	my ($self, $exit) = @_;
2006		2698
2007	return unless $self->type == cf::PLAYER;	2699	return unless $self->type == cf::PLAYER;
2008		2700
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2701	$self->enter_link;
2021		2702
2022	(async {	2703	(async {
2023	$self->deactivate_recursive; # just to be sure	2704	$Coro::current->{desc} = "enter_exit";
		2705
2024	unless (eval {	2706	unless (eval {
		2707	$self->deactivate_recursive; # just to be sure
		2708
		2709	# random map handling
		2710	{
		2711	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2712
		2713	prepare_random_map $exit
		2714	if $exit->slaying eq "/!";
		2715	}
		2716
		2717	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2718	my $x = $exit->stats->hp;
		2719	my $y = $exit->stats->sp;
		2720
2025	$self->goto ($slaying, $hp, $sp);	2721	$self->goto ($map, $x, $y);
2026		2722
		2723	# if exit is damned, update players death & WoR home-position
		2724	$self->contr->savebed ($map, $x, $y)
		2725	if $exit->flag (cf::FLAG_DAMNED);
		2726
2027	1;	2727	1
2028	}) {	2728	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2729	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2730	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2731	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2732	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2733
2034	warn "ERROR in enter_exit: $@";	2734	warn "ERROR in enter_exit: $@";
…		…
2053		2753
2054	utf8::encode $text;	2754	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2755	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2756	}
2057		2757
		2758	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2759
		2760	Send a drawinfo or msg packet to the client, formatting the msg for the
		2761	client if neccessary. C<$type> should be a string identifying the type of
		2762	the message, with C<log> being the default. If C<$color> is negative, suppress
		2763	the message unless the client supports the msg packet.
		2764
		2765	=cut
		2766
		2767	# non-persistent channels (usually the info channel)
		2768	our %CHANNEL = (
		2769	"c/identify" => {
		2770	id => "infobox",
		2771	title => "Identify",
		2772	reply => undef,
		2773	tooltip => "Items recently identified",
		2774	},
		2775	"c/examine" => {
		2776	id => "infobox",
		2777	title => "Examine",
		2778	reply => undef,
		2779	tooltip => "Signs and other items you examined",
		2780	},
		2781	"c/book" => {
		2782	id => "infobox",
		2783	title => "Book",
		2784	reply => undef,
		2785	tooltip => "The contents of a note or book",
		2786	},
		2787	"c/lookat" => {
		2788	id => "infobox",
		2789	title => "Look",
		2790	reply => undef,
		2791	tooltip => "What you saw there",
		2792	},
		2793	"c/who" => {
		2794	id => "infobox",
		2795	title => "Players",
		2796	reply => undef,
		2797	tooltip => "Shows players who are currently online",
		2798	},
		2799	"c/body" => {
		2800	id => "infobox",
		2801	title => "Body Parts",
		2802	reply => undef,
		2803	tooltip => "Shows which body parts you posess and are available",
		2804	},
		2805	"c/statistics" => {
		2806	id => "infobox",
		2807	title => "Statistics",
		2808	reply => undef,
		2809	tooltip => "Shows your primary statistics",
		2810	},
		2811	"c/skills" => {
		2812	id => "infobox",
		2813	title => "Skills",
		2814	reply => undef,
		2815	tooltip => "Shows your experience per skill and item power",
		2816	},
		2817	"c/shopitems" => {
		2818	id => "infobox",
		2819	title => "Shop Items",
		2820	reply => undef,
		2821	tooltip => "Shows the items currently for sale in this shop",
		2822	},
		2823	"c/resistances" => {
		2824	id => "infobox",
		2825	title => "Resistances",
		2826	reply => undef,
		2827	tooltip => "Shows your resistances",
		2828	},
		2829	"c/pets" => {
		2830	id => "infobox",
		2831	title => "Pets",
		2832	reply => undef,
		2833	tooltip => "Shows information abotu your pets/a specific pet",
		2834	},
		2835	"c/perceiveself" => {
		2836	id => "infobox",
		2837	title => "Perceive Self",
		2838	reply => undef,
		2839	tooltip => "You gained detailed knowledge about yourself",
		2840	},
		2841	"c/uptime" => {
		2842	id => "infobox",
		2843	title => "Uptime",
		2844	reply => undef,
		2845	tooltip => "How long the server has been running since last restart",
		2846	},
		2847	"c/mapinfo" => {
		2848	id => "infobox",
		2849	title => "Map Info",
		2850	reply => undef,
		2851	tooltip => "Information related to the maps",
		2852	},
		2853	"c/party" => {
		2854	id => "party",
		2855	title => "Party",
		2856	reply => "gsay ",
		2857	tooltip => "Messages and chat related to your party",
		2858	},
		2859	"c/death" => {
		2860	id => "death",
		2861	title => "Death",
		2862	reply => undef,
		2863	tooltip => "Reason for and more info about your most recent death",
		2864	},
		2865	"c/say" => $SAY_CHANNEL,
		2866	"c/chat" => $CHAT_CHANNEL,
		2867	);
		2868
		2869	sub cf::client::send_msg {
		2870	my ($self, $channel, $msg, $color, @extra) = @_;
		2871
		2872	$msg = $self->pl->expand_cfpod ($msg)
		2873	unless $color & cf::NDI_VERBATIM;
		2874
		2875	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2876
		2877	# check predefined channels, for the benefit of C
		2878	if ($CHANNEL{$channel}) {
		2879	$channel = $CHANNEL{$channel};
		2880
		2881	$self->ext_msg (channel_info => $channel);
		2882	$channel = $channel->{id};
		2883
		2884	} elsif (ref $channel) {
		2885	# send meta info to client, if not yet sent
		2886	unless (exists $self->{channel}{$channel->{id}}) {
		2887	$self->{channel}{$channel->{id}} = $channel;
		2888	$self->ext_msg (channel_info => $channel);
		2889	}
		2890
		2891	$channel = $channel->{id};
		2892	}
		2893
		2894	return unless @extra || length $msg;
		2895
		2896	# default colour, mask it out
		2897	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2898	if $color & cf::NDI_DEF;
		2899
		2900	my $pkt = "msg "
		2901	. $self->{json_coder}->encode (
		2902	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2903	);
		2904
		2905	# try lzf for large packets
		2906	$pkt = "lzf " . Compress::LZF::compress $pkt
		2907	if 1024 <= length $pkt and $self->{can_lzf};
		2908
		2909	# split very large packets
		2910	if (8192 < length $pkt and $self->{can_lzf}) {
		2911	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2912	$pkt = "frag";
		2913	}
		2914
		2915	$self->send_packet ($pkt);
		2916	}
		2917
2058	=item $client->ext_event ($type, %msg)	2918	=item $client->ext_msg ($type, @msg)
2059		2919
2060	Sends an exti event to the client.	2920	Sends an ext event to the client.
2061		2921
2062	=cut	2922	=cut
2063		2923
2064	sub cf::client::ext_event($$%) {	2924	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2925	my ($self, $type, @msg) = @_;
2066		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2929	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2930	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
		2934
		2935	=item $client->ext_reply ($msgid, @msg)
		2936
		2937	Sends an ext reply to the client.
		2938
		2939	=cut
		2940
		2941	sub cf::client::ext_reply($$@) {
		2942	my ($self, $id, @msg) = @_;
		2943
		2944	if ($self->extcmd == 2) {
		2945	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2946	} elsif ($self->extcmd == 1) {
		2947	#TODO: version 1, remove
		2948	unshift @msg, msgtype => "reply", msgid => $id;
		2949	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2950	}
2069	}	2951	}
2070		2952
2071	=item $success = $client->query ($flags, "text", \&cb)	2953	=item $success = $client->query ($flags, "text", \&cb)
2072		2954
2073	Queues a query to the client, calling the given callback with	2955	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2958
2077	Queries can fail, so check the return code. Or don't, as queries will become	2959	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2960	become reliable at some point in the future.
2079		2961
2080	=cut	2962	=cut
2081		2963
2082	sub cf::client::query {	2964	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2965	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2973	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2975
2094	$self->send_packet ($self->{query_queue}[0][0])	2976	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2977	if @{ $self->{query_queue} } == 1;
		2978
		2979	1
2096	}	2980	}
2097		2981
2098	cf::client->attach (	2982	cf::client->attach (
		2983	on_connect => sub {
		2984	my ($ns) = @_;
		2985
		2986	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2987	},
2099	on_reply => sub {	2988	on_reply => sub {
2100	my ($ns, $msg) = @_;	2989	my ($ns, $msg) = @_;
2101		2990
2102	# this weird shuffling is so that direct followup queries	2991	# this weird shuffling is so that direct followup queries
2103	# get handled first	2992	# get handled first
…		…
2115	} else {	3004	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3006	}
2118	}	3007	}
2119	},	3008	},
		3009	on_exticmd => sub {
		3010	my ($ns, $buf) = @_;
		3011
		3012	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3013
		3014	if (ref $msg) {
		3015	my ($type, $reply, @payload) =
		3016	"ARRAY" eq ref $msg
		3017	? @$msg
		3018	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3019
		3020	my @reply;
		3021
		3022	if (my $cb = $EXTICMD{$type}) {
		3023	@reply = $cb->($ns, @payload);
		3024	}
		3025
		3026	$ns->ext_reply ($reply, @reply)
		3027	if $reply;
		3028
		3029	} else {
		3030	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3031	}
		3032
		3033	cf::override;
		3034	},
2120	);	3035	);
2121		3036
2122	=item $client->async (\&cb)	3037	=item $client->async (\&cb)
2123		3038
2124	Create a new coroutine, running the specified callback. The coroutine will	3039	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3080	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3081	our $safe_hole = new Safe::Hole;
2167		3082
2168	$SIG{FPE} = 'IGNORE';	3083	$SIG{FPE} = 'IGNORE';
2169		3084
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3085	$safe->permit_only (Opcode::opset qw(
		3086	:base_core :base_mem :base_orig :base_math
		3087	grepstart grepwhile mapstart mapwhile
		3088	sort time
		3089	));
2171		3090
2172	# here we export the classes and methods available to script code	3091	# here we export the classes and methods available to script code
2173		3092
2174	=pod	3093	=pod
2175		3094
2176	The following functions and methods are available within a safe environment:	3095	The following functions and methods are available within a safe environment:
2177		3096
2178	cf::object contr pay_amount pay_player map	3097	cf::object
		3098	contr pay_amount pay_player map x y force_find force_add destroy
		3099	insert remove name archname title slaying race decrease split
		3100	value
		3101
2179	cf::object::player player	3102	cf::object::player
2180	cf::player peaceful	3103	player
2181	cf::map trigger	3104
		3105	cf::player
		3106	peaceful
		3107
		3108	cf::map
		3109	trigger
2182		3110
2183	=cut	3111	=cut
2184		3112
2185	for (	3113	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3114	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3115	insert remove inv nrof name archname title slaying race
		3116	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3117	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3118	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3119	["cf::map" => qw(trigger)],
2190	) {	3120	) {
2191	no strict 'refs';	3121	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3122	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3123	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2210	my ($code, %vars) = @_;	3140	my ($code, %vars) = @_;
2211		3141
2212	my $qcode = $code;	3142	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3143	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3144	$qcode =~ s/\n/\\n/g;
		3145
		3146	%vars = (_dummy => 0) unless %vars;
2215		3147
2216	local $_;	3148	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;	3149	local @safe::cf::_safe_eval_args = values %vars;
2218		3150
2219	my $eval =	3151	my $eval =
…		…
2262	=back	3194	=back
2263		3195
2264	=cut	3196	=cut
2265		3197
2266	#############################################################################	3198	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	3199	# the server's init and main functions
2437		3200
2438	sub load_facedata($) {	3201	sub load_facedata($) {
2439	my ($path) = @_;	3202	my ($path) = @_;
		3203
		3204	# HACK to clear player env face cache, we need some signal framework
		3205	# for this (global event?)
		3206	%ext::player_env::MUSIC_FACE_CACHE = ();
		3207
		3208	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		3209
2441	warn "loading facedata from $path\n";	3210	warn "loading facedata from $path\n";
2442		3211
2443	my $facedata;	3212	my $facedata;
2444	0 < aio_load $path, $facedata	3213	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3216	$facedata = Coro::Storable::thaw $facedata;
2448		3217
2449	$facedata->{version} == 2	3218	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3219	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3220
		3221	# patch in the exptable
		3222	$facedata->{resource}{"res/exp_table"} = {
		3223	type => FT_RSRC,
		3224	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3225	};
		3226	cf::cede_to_tick;
		3227
2452	{	3228	{
2453	my $faces = $facedata->{faceinfo};	3229	my $faces = $facedata->{faceinfo};
2454		3230
2455	while (my ($face, $info) = each %$faces) {	3231	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3232	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3233
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3234	cf::face::set_visibility $idx, $info->{visibility};
		3235	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3236	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3237	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2460	Coro::cede;	3238
		3239	cf::cede_to_tick;
2461	}	3240	}
2462		3241
2463	while (my ($face, $info) = each %$faces) {	3242	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3243	next unless $info->{smooth};
		3244
2465	my $idx = cf::face::find $face	3245	my $idx = cf::face::find $face
2466	or next;	3246	or next;
		3247
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3248	if (my $smooth = cf::face::find $info->{smooth}) {
		3249	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3250	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3251	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3252	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3253	}
2472	Coro::cede;	3254
		3255	cf::cede_to_tick;
2473	}	3256	}
2474	}	3257	}
2475		3258
2476	{	3259	{
2477	my $anims = $facedata->{animinfo};	3260	my $anims = $facedata->{animinfo};
2478		3261
2479	while (my ($anim, $info) = each %$anims) {	3262	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3263	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3264	cf::cede_to_tick;
2482	}	3265	}
2483		3266
2484	cf::anim::invalidate_all; # d'oh	3267	cf::anim::invalidate_all; # d'oh
2485	}	3268	}
2486		3269
		3270	{
		3271	# TODO: for gcfclient pleasure, we should give resources
		3272	# that gcfclient doesn't grok a >10000 face index.
		3273	my $res = $facedata->{resource};
		3274
		3275	while (my ($name, $info) = each %$res) {
		3276	if (defined $info->{type}) {
		3277	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3278	my $data;
		3279
		3280	if ($info->{type} & 1) {
		3281	# prepend meta info
		3282
		3283	my $meta = $enc->encode ({
		3284	name => $name,
		3285	%{ $info->{meta} || {} },
		3286	});
		3287
		3288	$data = pack "(w/a*)*", $meta, $info->{data};
		3289	} else {
		3290	$data = $info->{data};
		3291	}
		3292
		3293	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3294	cf::face::set_type $idx, $info->{type};
		3295	} else {
		3296	$RESOURCE{$name} = $info;
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3304
2487	1	3305	1
2488	}	3306	}
2489		3307
		3308	cf::global->attach (on_resource_update => sub {
		3309	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3310	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3311
		3312	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3313	my $sound = $soundconf->{compat}[$_]
		3314	or next;
		3315
		3316	my $face = cf::face::find "sound/$sound->[1]";
		3317	cf::sound::set $sound->[0] => $face;
		3318	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3319	}
		3320
		3321	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3322	my $face = cf::face::find "sound/$v";
		3323	cf::sound::set $k => $face;
		3324	}
		3325	}
		3326	});
		3327
		3328	register_exticmd fx_want => sub {
		3329	my ($ns, $want) = @_;
		3330
		3331	while (my ($k, $v) = each %$want) {
		3332	$ns->fx_want ($k, $v);
		3333	}
		3334	};
		3335
		3336	sub load_resource_file($) {
		3337	my $guard = lock_acquire "load_resource_file";
		3338
		3339	my $status = load_resource_file_ $_[0];
		3340	get_slot 0.1, 100;
		3341	cf::arch::commit_load;
		3342
		3343	$status
		3344	}
		3345
		3346	sub reload_regions {
		3347	# HACK to clear player env face cache, we need some signal framework
		3348	# for this (global event?)
		3349	%ext::player_env::MUSIC_FACE_CACHE = ();
		3350
		3351	load_resource_file "$MAPDIR/regions"
		3352	or die "unable to load regions file\n";
		3353
		3354	for (cf::region::list) {
		3355	$_->{match} = qr/$_->{match}/
		3356	if exists $_->{match};
		3357	}
		3358	}
		3359
2490	sub reload_facedata {	3360	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3361	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3362	or die "unable to load facedata\n";
2493	}	3363	}
2494		3364
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3365	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3366	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3367	or die "unable to load archetypes\n";
2503	}	3368	}
2504		3369
2505	sub reload_treasures {	3370	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3371	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3372	or die "unable to load treasurelists\n";
2508	}	3373	}
2509		3374
2510	sub reload_resources {	3375	sub reload_resources {
2511	warn "reloading resource files...\n";	3376	warn "reloading resource files...\n";
2512		3377
2513	reload_regions;
2514	reload_facedata;	3378	reload_facedata;
2515	reload_archetypes;	3379	reload_archetypes;
		3380	reload_regions;
2516	reload_treasures;	3381	reload_treasures;
2517		3382
2518	warn "finished reloading resource files\n";	3383	warn "finished reloading resource files\n";
2519	}	3384	}
2520		3385
2521	sub init {	3386	sub reload_config {
2522	reload_resources;
2523	}
2524
2525	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3387	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3388	or return;
2528		3389
2529	local $/;	3390	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3391	*CFG = YAML::Load <$fh>;
2531		3392
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3393	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2533		3394
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3395	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3396	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2541	};	3402	};
2542	warn $@ if $@;	3403	warn $@ if $@;
2543	}	3404	}
2544	}	3405	}
2545		3406
		3407	sub pidfile() {
		3408	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3409	or die "$PIDFILE: $!";
		3410	flock $fh, &Fcntl::LOCK_EX
		3411	or die "$PIDFILE: flock: $!";
		3412	$fh
		3413	}
		3414
		3415	# make sure only one server instance is running at any one time
		3416	sub atomic {
		3417	my $fh = pidfile;
		3418
		3419	my $pid = <$fh>;
		3420	kill 9, $pid if $pid > 0;
		3421
		3422	seek $fh, 0, 0;
		3423	print $fh $$;
		3424	}
		3425
		3426	sub main_loop {
		3427	warn "EV::loop starting\n";
		3428	if (1) {
		3429	EV::loop;
		3430	}
		3431	warn "EV::loop returned\n";
		3432	goto &main_loop unless $REALLY_UNLOOP;
		3433	}
		3434
2546	sub main {	3435	sub main {
		3436	cf::init_globals; # initialise logging
		3437
		3438	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3439	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3440	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3441	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3442
		3443	cf::init_experience;
		3444	cf::init_anim;
		3445	cf::init_attackmess;
		3446	cf::init_dynamic;
		3447
		3448	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3449
2547	# we must not ever block the main coroutine	3450	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3451	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3452	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3453	(async {
2551	Event::one_event;	3454	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3455	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3456	})->prio (Coro::PRIO_MAX);
2553	};	3457	};
2554		3458
2555	cfg_load;	3459	evthread_start IO::AIO::poll_fileno;
		3460
		3461	cf::sync_job {
		3462	reload_resources;
		3463	reload_config;
2556	db_init;	3464	db_init;
		3465
		3466	cf::load_settings;
		3467	cf::load_materials;
		3468	cf::init_uuid;
		3469	cf::init_signals;
		3470	cf::init_commands;
		3471	cf::init_skills;
		3472
		3473	cf::init_beforeplay;
		3474
		3475	atomic;
		3476
2557	load_extensions;	3477	load_extensions;
2558		3478
2559	$TICK_WATCHER->start;	3479	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3480
		3481	# no (long-running) fork's whatsoever before this point(!)
		3482	use POSIX ();
		3483	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3484
		3485	(pop @POST_INIT)->(0) while @POST_INIT;
		3486	};
		3487
		3488	main_loop;
2561	}	3489	}
2562		3490
2563	#############################################################################	3491	#############################################################################
2564	# initialisation and cleanup	3492	# initialisation and cleanup
2565		3493
2566	# install some emergency cleanup handlers	3494	# install some emergency cleanup handlers
2567	BEGIN {	3495	BEGIN {
		3496	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3497	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3498	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3499	cf::cleanup "SIG$signal";
2576	},
2577	);	3500	};
		3501	}
		3502	}
		3503
		3504	sub write_runtime_sync {
		3505	# first touch the runtime file to show we are still running:
		3506	# the fsync below can take a very very long time.
		3507
		3508	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3509
		3510	my $guard = cf::lock_acquire "write_runtime";
		3511
		3512	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3513	or return;
		3514
		3515	my $value = $cf::RUNTIME + 90 + 10;
		3516	# 10 is the runtime save interval, for a monotonic clock
		3517	# 60 allows for the watchdog to kill the server.
		3518
		3519	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3520	and return;
		3521
		3522	# always fsync - this file is important
		3523	aio_fsync $fh
		3524	and return;
		3525
		3526	# touch it again to show we are up-to-date
		3527	aio_utime $fh, undef, undef;
		3528
		3529	close $fh
		3530	or return;
		3531
		3532	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3533	and return;
		3534
		3535	warn "runtime file written.\n";
		3536
2578	}	3537	1
		3538	}
		3539
		3540	our $uuid_lock;
		3541	our $uuid_skip;
		3542
		3543	sub write_uuid_sync($) {
		3544	$uuid_skip ||= $_[0];
		3545
		3546	return if $uuid_lock;
		3547	local $uuid_lock = 1;
		3548
		3549	my $uuid = "$LOCALDIR/uuid";
		3550
		3551	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3552	or return;
		3553
		3554	my $value = uuid_seq uuid_cur;
		3555
		3556	unless ($value) {
		3557	warn "cowardly refusing to write zero uuid value!\n";
		3558	return;
		3559	}
		3560
		3561	my $value = uuid_str $value + $uuid_skip;
		3562	$uuid_skip = 0;
		3563
		3564	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3565	and return;
		3566
		3567	# always fsync - this file is important
		3568	aio_fsync $fh
		3569	and return;
		3570
		3571	close $fh
		3572	or return;
		3573
		3574	aio_rename "$uuid~", $uuid
		3575	and return;
		3576
		3577	warn "uuid file written ($value).\n";
		3578
		3579	1
		3580
		3581	}
		3582
		3583	sub write_uuid($$) {
		3584	my ($skip, $sync) = @_;
		3585
		3586	$sync ? write_uuid_sync $skip
		3587	: async { write_uuid_sync $skip };
2579	}	3588	}
2580		3589
2581	sub emergency_save() {	3590	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3591	my $freeze_guard = cf::freeze_mainloop;
2583		3592
2584	warn "enter emergency perl save\n";	3593	warn "emergency_perl_save: enter\n";
2585		3594
2586	cf::sync_job {	3595	cf::sync_job {
		3596	# this is a trade-off: we want to be very quick here, so
		3597	# save all maps without fsync, and later call a global sync
		3598	# (which in turn might be very very slow)
		3599	local $USE_FSYNC = 0;
		3600
2587	# use a peculiar iteration method to avoid tripping on perl	3601	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3602	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3603	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3604	warn "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3605	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3606	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3607	$pl->valid or next;
		3608	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3609	$pl->save;
2595	}	3610	}
2596	warn "end emergency player save\n";	3611	warn "emergency_perl_save: end player save\n";
2597		3612
2598	warn "begin emergency map save\n";	3613	warn "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3614	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3615	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3616	$map->valid or next;
2602	$map->save;	3617	$map->save;
2603	}	3618	}
2604	warn "end emergency map save\n";	3619	warn "emergency_perl_save: end map save\n";
2605		3620
2606	warn "begin emergency database checkpoint\n";	3621	warn "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3622	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3623	warn "emergency_perl_save: end database checkpoint\n";
		3624
		3625	warn "emergency_perl_save: begin write uuid\n";
		3626	write_uuid_sync 1;
		3627	warn "emergency_perl_save: end write uuid\n";
2609	};	3628	};
2610		3629
		3630	warn "emergency_perl_save: starting sync()\n";
		3631	IO::AIO::aio_sync sub {
		3632	warn "emergency_perl_save: finished sync()\n";
		3633	};
		3634
2611	warn "leave emergency perl save\n";	3635	warn "emergency_perl_save: leave\n";
2612	}	3636	}
2613		3637
2614	sub post_cleanup {	3638	sub post_cleanup {
2615	my ($make_core) = @_;	3639	my ($make_core) = @_;
2616		3640
2617	warn Carp::longmess "post_cleanup backtrace"	3641	warn Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3642	if $make_core;
		3643
		3644	my $fh = pidfile;
		3645	unlink $PIDFILE if <$fh> == $$;
		3646	}
		3647
		3648	# a safer delete_package, copied from Symbol
		3649	sub clear_package($) {
		3650	my $pkg = shift;
		3651
		3652	# expand to full symbol table name if needed
		3653	unless ($pkg =~ /^main::.*::$/) {
		3654	$pkg = "main$pkg" if $pkg =~ /^::/;
		3655	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3656	$pkg .= '::' unless $pkg =~ /::$/;
		3657	}
		3658
		3659	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3660	my $stem_symtab = *{$stem}{HASH};
		3661
		3662	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3663	or return;
		3664
		3665	# clear all symbols
		3666	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3667	for my $name (keys %$leaf_symtab) {
		3668	_gv_clear *{"$pkg$name"};
		3669	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3670	}
		3671	warn "cleared package $pkg\n";#d#
2619	}	3672	}
2620		3673
2621	sub do_reload_perl() {	3674	sub do_reload_perl() {
2622	# can/must only be called in main	3675	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	3676	if ($Coro::current != $Coro::main) {
2624	warn "can only reload from main coroutine";	3677	warn "can only reload from main coroutine";
2625	return;	3678	return;
2626	}	3679	}
2627		3680
		3681	return if $RELOAD++;
		3682
		3683	my $t1 = EV::time;
		3684
		3685	while ($RELOAD) {
2628	warn "reloading...";	3686	warn "reloading...";
2629		3687
2630	warn "entering sync_job";	3688	warn "entering sync_job";
2631		3689
2632	cf::sync_job {	3690	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark	3691	cf::write_runtime_sync; # external watchdog should not bark
2634	cf::emergency_save;	3692	cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark	3693	cf::write_runtime_sync; # external watchdog should not bark
2636		3694
2637	warn "syncing database to disk";	3695	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;	3696	BDB::db_env_txn_checkpoint $DB_ENV;
2639		3697
2640	# if anything goes wrong in here, we should simply crash as we already saved	3698	# if anything goes wrong in here, we should simply crash as we already saved
2641		3699
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";	3700	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;	3701	while (IO::AIO::nreqs || BDB::nreqs) {
2653	warn "iterate...";	3702	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();
2661
2662	warn "removing commands";
2663	%COMMAND = ();
2664
2665	warn "removing ext commands";
2666	%EXTCMD = ();
2667
2668	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";
2671
2672	if (my $cb = $pkg->can ("unload")) {
2673	eval {
2674	$cb->($pkg);
2675	1
2676	} or warn "$pkg unloaded, but with errors: $@";
2677	}	3703	}
2678		3704
2679	warn "... nuking $pkg";	3705	warn "cancelling all extension coros";
2680	Symbol::delete_package $pkg;	3706	$_->cancel for values %EXT_CORO;
2681	}	3707	%EXT_CORO = ();
2682		3708
2683	warn "unloading all perl modules loaded from $LIBDIR";	3709	warn "removing commands";
2684	while (my ($k, $v) = each %INC) {	3710	%COMMAND = ();
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		3711
		3712	warn "removing ext/exti commands";
		3713	%EXTCMD = ();
		3714	%EXTICMD = ();
		3715
		3716	warn "unloading/nuking all extensions";
		3717	for my $pkg (@EXTS) {
2687	warn "... unloading $k";	3718	warn "... unloading $pkg";
2688	delete $INC{$k};
2689		3719
2690	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;
2692
2693	if (my $cb = $k->can ("unload_module")) {	3720	if (my $cb = $pkg->can ("unload")) {
		3721	eval {
2694	$cb->();	3722	$cb->($pkg);
		3723	1
		3724	} or warn "$pkg unloaded, but with errors: $@";
		3725	}
		3726
		3727	warn "... clearing $pkg";
		3728	clear_package $pkg;
2695	}	3729	}
2696		3730
2697	Symbol::delete_package $k;	3731	warn "unloading all perl modules loaded from $LIBDIR";
		3732	while (my ($k, $v) = each %INC) {
		3733	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3734
		3735	warn "... unloading $k";
		3736	delete $INC{$k};
		3737
		3738	$k =~ s/\.pm$//;
		3739	$k =~ s/\//::/g;
		3740
		3741	if (my $cb = $k->can ("unload_module")) {
		3742	$cb->();
		3743	}
		3744
		3745	clear_package $k;
2698	}	3746	}
2699		3747
2700	warn "getting rid of safe::, as good as possible";	3748	warn "getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	3749	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3750	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3751
2704	warn "unloading cf.pm \"a bit\"";	3752	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3753	delete $INC{"cf.pm"};
2706	delete $INC{"cf/pod.pm"};	3754	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2707		3755
2708	# don't, removes xs symbols, too,	3756	# don't, removes xs symbols, too,
2709	# and global variables created in xs	3757	# and global variables created in xs
2710	#Symbol::delete_package __PACKAGE__;	3758	#clear_package __PACKAGE__;
2711		3759
2712	warn "unload completed, starting to reload now";	3760	warn "unload completed, starting to reload now";
2713		3761
2714	warn "reloading cf.pm";	3762	warn "reloading cf.pm";
2715	require cf;	3763	require cf;
2716	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3764	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2717		3765
2718	warn "loading config and database again";	3766	warn "loading config and database again";
2719	cf::cfg_load;	3767	cf::reload_config;
2720		3768
2721	warn "loading extensions";	3769	warn "loading extensions";
2722	cf::load_extensions;	3770	cf::load_extensions;
2723		3771
		3772	if ($REATTACH_ON_RELOAD) {
2724	warn "reattaching attachments to objects/players";	3773	warn "reattaching attachments to objects/players";
2725	_global_reattach; # objects, sockets	3774	_global_reattach; # objects, sockets
2726	warn "reattaching attachments to maps";	3775	warn "reattaching attachments to maps";
2727	reattach $_ for values %MAP;	3776	reattach $_ for values %MAP;
2728	warn "reattaching attachments to players";	3777	warn "reattaching attachments to players";
2729	reattach $_ for values %PLAYER;	3778	reattach $_ for values %PLAYER;
		3779	}
2730		3780
		3781	warn "running post_init jobs";
		3782	(pop @POST_INIT)->(1) while @POST_INIT;
		3783
2731	warn "leaving sync_job";	3784	warn "leaving sync_job";
2732		3785
2733	1	3786	1
2734	} or do {	3787	} or do {
2735	warn $@;	3788	warn $@;
2736	warn "error while reloading, exiting.";	3789	cf::cleanup "error while reloading, exiting.";
2737	exit 1;
2738	};	3790	};
2739		3791
2740	warn "reloaded";	3792	warn "reloaded";
		3793	--$RELOAD;
		3794	}
		3795
		3796	$t1 = EV::time - $t1;
		3797	warn "reload completed in ${t1}s\n";
2741	};	3798	};
2742		3799
2743	our $RELOAD_WATCHER; # used only during reload	3800	our $RELOAD_WATCHER; # used only during reload
2744		3801
2745	sub reload_perl() {	3802	sub reload_perl() {
2746	# doing reload synchronously and two reloads happen back-to-back,	3803	# doing reload synchronously and two reloads happen back-to-back,
2747	# coro crashes during coro_state_free->destroy here.	3804	# coro crashes during coro_state_free->destroy here.
2748		3805
2749	$RELOAD_WATCHER ||= Event->timer (	3806	$RELOAD_WATCHER ||= cf::async {
2750	reentrant => 0,	3807	Coro::AIO::aio_wait cache_extensions;
2751	after => 0,	3808
2752	data => WF_AUTOCANCEL,	3809	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2753	cb => sub {
2754	do_reload_perl;	3810	do_reload_perl;
2755	undef $RELOAD_WATCHER;	3811	undef $RELOAD_WATCHER;
2756	},	3812	};
2757	);	3813	};
2758	}	3814	}
2759		3815
2760	register_command "reload" => sub {	3816	register_command "reload" => sub {
2761	my ($who, $arg) = @_;	3817	my ($who, $arg) = @_;
2762		3818
2763	if ($who->flag (FLAG_WIZ)) {	3819	if ($who->flag (FLAG_WIZ)) {
2764	$who->message ("reloading server.");	3820	$who->message ("reloading server.");
		3821	async {
		3822	$Coro::current->{desc} = "perl_reload";
2765	async { reload_perl };	3823	reload_perl;
		3824	};
2766	}	3825	}
2767	};	3826	};
2768		3827
2769	unshift @INC, $LIBDIR;	3828	unshift @INC, $LIBDIR;
2770		3829
…		…
2772		3831
2773	our @WAIT_FOR_TICK;	3832	our @WAIT_FOR_TICK;
2774	our @WAIT_FOR_TICK_BEGIN;	3833	our @WAIT_FOR_TICK_BEGIN;
2775		3834
2776	sub wait_for_tick {	3835	sub wait_for_tick {
2777	return unless $TICK_WATCHER->is_active;
2778	return if $Coro::current == $Coro::main;	3836	return if tick_inhibit || $Coro::current == $Coro::main;
2779		3837
2780	my $signal = new Coro::Signal;	3838	my $signal = new Coro::Signal;
2781	push @WAIT_FOR_TICK, $signal;	3839	push @WAIT_FOR_TICK, $signal;
2782	$signal->wait;	3840	$signal->wait;
2783	}	3841	}
2784		3842
2785	sub wait_for_tick_begin {	3843	sub wait_for_tick_begin {
2786	return unless $TICK_WATCHER->is_active;
2787	return if $Coro::current == $Coro::main;	3844	return if tick_inhibit || $Coro::current == $Coro::main;
2788		3845
2789	my $signal = new Coro::Signal;	3846	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3847	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3848	$signal->wait;
2792	}	3849	}
2793		3850
2794	$TICK_WATCHER = Event->timer (	3851	sub tick {
2795	reentrant => 0,
2796	parked => 1,
2797	prio => 0,
2798	at => $NEXT_TICK || $TICK,
2799	data => WF_AUTOCANCEL,
2800	cb => sub {
2801	if ($Coro::current != $Coro::main) {	3852	if ($Coro::current != $Coro::main) {
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3854	unless ++$bug_warning > 10;
2804	return;	3855	return;
2805	}	3856	}
2806		3857
2807	$NOW = Event::time;
2808
2809	cf::server_tick; # one server iteration	3858	cf::server_tick; # one server iteration
2810		3859
2811	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;
2813
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3860	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2815	$NEXT_RUNTIME_WRITE = $NOW + 10;	3861	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2816	Coro::async_pool {	3862	Coro::async_pool {
		3863	$Coro::current->{desc} = "runtime saver";
2817	write_runtime	3864	write_runtime_sync
2818	or warn "ERROR: unable to write runtime file: $!";	3865	or warn "ERROR: unable to write runtime file: $!";
2819	};
2820	}	3866	};
		3867	}
2821		3868
2822	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#
2824
2825	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2827
2828	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;
2830
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3869	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2832	$sig->send;	3870	$sig->send;
2833	}	3871	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {	3872	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;	3873	$sig->send;
2836	}
2837
2838	_post_tick;
2839	},	3874	}
2840	);	3875
		3876	$LOAD = ($NOW - $TICK_START) / $TICK;
		3877	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3878
		3879	if (0) {
		3880	if ($NEXT_TICK) {
		3881	my $jitter = $TICK_START - $NEXT_TICK;
		3882	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3883	warn "jitter $JITTER\n";#d#
		3884	}
		3885	}
		3886	}
2841		3887
2842	{	3888	{
2843	BDB::max_poll_time $TICK * 0.1;	3889	# configure BDB
2844	$BDB_POLL_WATCHER = Event->io (	3890
2845	reentrant => 0,
2846	fd => BDB::poll_fileno,
2847	poll => 'r',
2848	prio => 0,
2849	data => WF_AUTOCANCEL,
2850	cb => \&BDB::poll_cb,
2851	);
2852	BDB::min_parallel 8;	3891	BDB::min_parallel 8;
2853		3892	BDB::max_poll_reqs $TICK * 0.1;
2854	BDB::set_sync_prepare {	3893	$AnyEvent::BDB::WATCHER->priority (1);
2855	my $status;
2856	my $current = $Coro::current;
2857	(
2858	sub {
2859	$status = $!;
2860	$current->ready; undef $current;
2861	},
2862	sub {
2863	Coro::schedule while defined $current;
2864	$! = $status;
2865	},
2866	)
2867	};
2868		3894
2869	unless ($DB_ENV) {	3895	unless ($DB_ENV) {
2870	$DB_ENV = BDB::db_env_create;	3896	$DB_ENV = BDB::db_env_create;
		3897	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3898	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3899	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3900	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3901	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2871		3902
2872	cf::sync_job {	3903	cf::sync_job {
2873	eval {	3904	eval {
2874	BDB::db_env_open	3905	BDB::db_env_open
2875	$DB_ENV,	3906	$DB_ENV,
2876	$BDB_ENV_DIR,	3907	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3908	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3909	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3910	0666;
2880		3911
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3912	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;
2885	};	3913	};
2886		3914
2887	cf::cleanup "db_env_open(db): $@" if $@;	3915	cf::cleanup "db_env_open(db): $@" if $@;
2888	};	3916	};
2889	}	3917	}
		3918
		3919	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3920	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3921	};
		3922	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3923	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3924	};
		3925	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3926	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3927	};
2890	}	3928	}
2891		3929
2892	{	3930	{
		3931	# configure IO::AIO
		3932
2893	IO::AIO::min_parallel 8;	3933	IO::AIO::min_parallel 8;
2894
2895	undef $Coro::AIO::WATCHER;
2896	IO::AIO::max_poll_time $TICK * 0.1;	3934	IO::AIO::max_poll_time $TICK * 0.1;
2897	$AIO_POLL_WATCHER = Event->io (	3935	undef $AnyEvent::AIO::WATCHER;
2898	reentrant => 0,	3936	}
2899	data => WF_AUTOCANCEL,	3937
2900	fd => IO::AIO::poll_fileno,	3938	my $_log_backtrace;
2901	poll => 'r',	3939
2902	prio => 6,	3940	sub _log_backtrace {
2903	cb => \&IO::AIO::poll_cb,	3941	my ($msg, @addr) = @_;
2904	);	3942
		3943	$msg =~ s/\n//;
		3944
		3945	# limit the # of concurrent backtraces
		3946	if ($_log_backtrace < 2) {
		3947	++$_log_backtrace;
		3948	my $perl_bt = Carp::longmess $msg;
		3949	async {
		3950	$Coro::current->{desc} = "abt $msg";
		3951
		3952	my @bt = fork_call {
		3953	@addr = map { sprintf "%x", $_ } @addr;
		3954	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3955	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3956	or die "addr2line: $!";
		3957
		3958	my @funcs;
		3959	my @res = <$fh>;
		3960	chomp for @res;
		3961	while (@res) {
		3962	my ($func, $line) = splice @res, 0, 2, ();
		3963	push @funcs, "[$func] $line";
		3964	}
		3965
		3966	@funcs
		3967	};
		3968
		3969	LOG llevInfo, "[ABT] $perl_bt\n";
		3970	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3971	LOG llevInfo, "[ABT] $_\n" for @bt;
		3972	--$_log_backtrace;
		3973	};
		3974	} else {
		3975	LOG llevInfo, "[ABT] $msg\n";
		3976	LOG llevInfo, "[ABT] [suppressed]\n";
		3977	}
2905	}	3978	}
2906		3979
2907	# load additional modules	3980	# load additional modules
2908	use cf::pod;	3981	require "cf/$_.pm" for @EXTRA_MODULES;
2909		3982
2910	END { cf::emergency_save }	3983	END { cf::emergency_save }
2911		3984
2912	1	3985	1
2913		3986

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